Boiler



(No Model.)

H. C. GOULDING.

BOILBR.

No. 466,933. Patented Jan. 12, 1892.'

o o o o Q o o If.' oo @Oo OO ov l @www/moco 1 Snom/nuto@ ff. c @MM @W7 E @item/luga MQW uur STATES HENRY C. GOULDING, OF NASHOBA, MASSACHUSETTS.

BOILER.

SPECIFICATION forming part of Letters Patent No. 466,933, dated January 12, 18:92. Application filed February 12, 1891. Serial No. 381,154. (No model.)

To all whom t may concern:

Be it known that I, HENRY C. GOULDING, of Nashoba, in the county of Middlesex, in the State of Massachusetts, have invented new and useful Improvements in Boilers, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description. f

My invention relates to boilers construct-ed with a single shell and having a Iire-box at both ends, a smoke-box at both ends, a smokestack at both ends, (one for each lire-box) and independent lires at both ends, at the same time preserving full grate-surface for each tire.

My object is to produce a locomotive capable of high speed and of the maximum traction power, possessing great steam-producing properties without materially increasing the weight, and in which independent lires in independent lire-boxes are maintained each upon a full-sized grate-surface, each fire having a separate smoke-arch and a separate smokestack at the opposite end of the boiler from the tire, all ofthe smoke-dues being contained in a single boiler-shell, the iiues on one side leading to one stack and those on the other side to the other stack, and all being surrounded or passing through a single waterchamber, and both smoke-arches being submerged, and each end of the Water-chamber being extended over the smoke-arches, and at each end being vertically separated from the fire-box by a water-leg connected to a Water-leg upon that side ofthe fire-pot, a waterleg on the opposite side of the tire-box being also connected to the water-chamber above the smoke-arch of each tire-box, and also providing means for collecting the cinders from each fire and discharging them into the iirebox adjacent to the point where they are collected, thus producing a boiler having a lire at each end, each upon a full-sized grate, with one side ot' the boiler-dues for each fire, a single water-chamber exposed to the heat of two full-sized res, the boiler and its frame being relieved of all extra weight upon its center, although having virtually two boilers in one.

My invention consists in the several novel features of construction and operation hereinatter described, and which are specifically set forth in the claims hereunto annexed. It

`any ordinary construction. `dlvided as to its upper part by a water-leg is constructed as follows, reference being had to the accompanying drawings, in which- Figure l is a side elevation of my boiler applied to and creating a double-endet' locomotive, and having one end in vertical longitudinal section to show such a view of the verse section of one of the fire-boxes and ad jacent dues, showing that the water-legs on the sides and the water-leg partition or division-wall only extend the length ot the firebox and open into the single water-chamber in the boiler.

Inasmuch as my present invention relates to the boiler only, and as the frame is substantially the same as was patented by me by Letters Patent No. 422,075, dated February 25, 1890, for improvements in locomotives, I shall limit this specification entirely to the description of the boiler and its operation.

Ais the boiler, having a tire-box a upon each end, and this intermediate shell is of Each tire-box is partition or division-Wall h, extending from the front of the lire-box back to and having the inner edges of its walls secured to the duesheet sections c and d, creating a vertical slot oropeningintothe single water-chambcrin the boiler-shell. This partit-ionv water-leg opens on top through the crown-sheet or smoke-arch e,- and its lower side is curved over to and opens into the water-leg f on one side of the tire-box at one end of the boiler and at the other end into the water-leg g on .the opposite side ofthe lire-box. This construction leaves me full-sized grate-surface 71. at both ends of the boiler without any curtailment, though I `reduce the size of the top of the combustion-chamber and smoke'arch.

As the dues t' are all smoke-dues, it follows that the products of the combustion in one fire-box are carried through the one-half of the ues on that side to and are discharged through the stack la on that side, each lire-box having a separate stack upon the boiler at the end opposite to the tire-box. This divis- IOO ion of the Ilues by the Water-legs in the fireboXes gives me a separate crown-sheet or smoke-arch at each end for each fire-box and a separate set ot' iiues for each lire-box divided by a vertical water column m of substantially the Width of the Water-leg, in which there are no flues, and having a water-leg at each end thereof.

At n I show the exhaust-pipe connected to the cylinders p in the ordinary nia-nner, and the steam-chests of the cylinders are connected to the dome or single chamber in the boiler in the usual manner.

It Will be seen that my boiler is provided with a single Water-chamber heated by two independent ires, that all of the steam is connected in a single dome or steam-chamber, that the side Walls and part, at least, of the top of each tire-box are Water-legs, and that the crown-sheets and smoke-arches in both ends are submerged, thus both protecting them and also utilizing their heating-surface. The water-legs are carried around the front of each tire-box and around the door and connect-ed with the partition Water-legs. It Will also he seen that by having a single Water-chamber and fires at both ends thereof, though such fires are independent, yet they act jointly and co-operate in heating the Water and producing steam and in securing and maintaining an equal and high temperature the Whole length of the boiler, thereby producing a greaterl quantity of steam and easier and quicker and with very little, if any, more fuel than is nonr required in a single fire at a single end of the ordinary type of boiler. It will further be seen that the fire-box, smokearches, and Water-legs are all alike in both ends and of the same size, and that the gratesurface of each fire-box is the same and is of full size and substantially the same as in the ordinary type of boiler. It Will also be seen that by my construction I can use stay-bars fr of only about one-halt' of the length required in an ordinary fire-box.

At 5, Fig. 2, I show an opening forming the smoke-arch adjacent to the exhaust n and through the Water-leg into the fire-box, provided with' a covert, Which may be opened from time to time, as desired, to permit the finders there collected to be emptied direct nto the tire and utilized as fuel.

What I claim as my invention. and desire secure by Letters Patent, is-

mounted in vertically-separated flue-sheets,

a partly-vertical and partly-transverse Waterleg partition separating the fine-sheets sections and secured to the adjacent edges thereof and connected to the Water-chamber in the boiler and to a side Water-leg, 'and' an Vindependent smoke-stack for each fire-box.

3. A boiler comprising a shell, a-single Water-chamber therein, independent fire-boxes at each end of the shell, two sets of ilues in the Water-chamber, one for each tire-box, and each set connected to a smoke-stack, and a Vertical Water-leg partition in each lire -boX connected to the Water-chamber in the shell and to the water-leg on each sid'e'of each {ireboX.

4. The combination, with the tire-box having Water-leg sides, of a vertical and partlytransverse water leg` having its lower end connected to one of the side Water-legs and reducing the combustion-chamber, but not the surface of the grate.

5. The combination, With'the independent fire-boxes upon the ends of the intermediate boiler-shell, of a single shell having a single Water-chamber therein, a set of smoke-lines for each fire-box, and a vertical and partlytransverse water-leg partition in each tire-box and connected to the water-chamber in the shell.

6. Independent fire-boxes upon the ends of a single shell, a set of smoke-fines foreach fire-box in the shell, and a Water-leg partitionv IOO 

